Every winter, for almost two decades now, Toronto cyclists engage in wild and risky racing activities on a closed velodrome-style circuit. In order to prepare for the ice rinks, the cyclists increase traction on the ice by taking screws to their tires.

For 2012, this unique winter cycling event has raised funds for Charlie’s Freewheels, a free bicycle mechanic training program dedicated to the at-risk youth. Video after the jump.